NASHVILLE, Tenn. – Catherine Walker is a hand's on educator. She works for Urban Green Lab, a 30-foot mobile classroom in Nashville and the city's only nonprofit dedicated to improving the health and well being of people through sustainability.

Nissan is a founding partner of Urban Green Lab, contributing financially to the nonprofit in addition to providing a Nissan TITAN XD to move it around Nashville. Walker not only instructs area school children about sustainable living and energy conservation from inside the mobile classroom, she also drives the Nissan TITAN XD that pulls the big lab to and from schools and over the many highways of Middle Tennessee. Below is a video showing Walker, Urban Green Lab and the Nissan TITAN at work: